tween

A child between middle childhood and adolescence, usually between 8 and 12 years old.

A number in the twenties, or from 23 to 32.

A person who is neither a young child nor an adolescent, one of an age in the range of 8 to 12 years old or a similar range.

A person who is in his or her twenties.

To generate intermediate frames in an animated sequence so as to give the appearance of smooth movement